Systems and methods for enhanced techniques for determination of dental margins in intraoral scans. An example method includes receiving a request including an intraoral scan of a portion of a mouth, the intraoral scan depicting a margin created via adjustment of a tooth. A prepared region depicting the tooth is identified based on the intraoral scan. A representation of the intraoral scan usable as input to a machine learning model is generated, with the representation comprising structured data associated with the point cloud or mesh. Information identifying an estimated margin is determined based on the representation via computing a forward pass of the machine learning model. A response comprising the determined information is generated, with the determined information being usable to fabricate a prosthetic according to the estimated margin.

The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (PGA) on to cut dentin tubules followed by installation of a definitive restorative in a single visit.

The invention relates to the application of a composition containing recombinant amelogenin and propylene glycol alginate (PGA) on to cut dentin tubules followed by installation of a definitive restorative in a single visit.

A dental composition comprising doped T1O2 nanoparticles, and a curable resin material, wherein the curable resin material comprises a polymer precursor component, and wherein the dopant may be one or more of, for example, N (nitrogen), Ag (silver), F (fluorine), P (phosphorus), and P04 (phosphate). A method of using the dental composition in a dental application. The dental composition may be antibacterial in the absence of visible light or UV light.

A dental composition comprising doped T1O2 nanoparticles, and a curable resin material, wherein the curable resin material comprises a polymer precursor component, and wherein the dopant may be one or more of, for example, N (nitrogen), Ag (silver), F (fluorine), P (phosphorus), and P04 (phosphate). A method of using the dental composition in a dental application. The dental composition may be antibacterial in the absence of visible light or UV light.

The present invention provides an artificial tooth comprising a plurality of internal crown members, a plurality of connecting rods, at least one external crown member, at least one spring clip. The internal crown members are respectively fitted to a plurality of abutments. Each of the connecting rods connects to at least two of the internal crown members. The external crown member has at least one groove therein, and the groove is formed to correspond to the internal crown members. The spring clip clamps a protrusion block formed on the internal crown members or on an adjacent tooth. Further, the spring clip comprises two spring arms opposite each other, and each of two spring arms has a fixed end and a movable end opposite to fixed end. Each of two spring arms connects to the fixed end and the movable end, and fixed end is fixed inside the internal crown members.

The present invention provides an artificial tooth comprising a plurality of internal crown members, a plurality of connecting rods, at least one external crown member, at least one spring clip. The internal crown members are respectively fitted to a plurality of abutments. Each of the connecting rods connects to at least two of the internal crown members. The external crown member has at least one groove therein, and the groove is formed to correspond to the internal crown members. The spring clip clamps a protrusion block formed on the internal crown members or on an adjacent tooth. Further, the spring clip comprises two spring arms opposite each other, and each of two spring arms has a fixed end and a movable end opposite to fixed end. Each of two spring arms connects to the fixed end and the movable end, and fixed end is fixed inside the internal crown members.

Dental preparation uses a tooth preparation guide custom-made liar fitting with teeth of a patient. The preparation guide includes one or more guide channels for guiding a cutting tool. The preparation guide enables modification of the teeth as planned with high level of precision. A dental prosthesis for installing onto prepared teeth of the patient is provided before preparation of the teeth. The prosthesis includes features that are complementary to the prepared teeth. The prosthesis can be installed immediately after preparing the teeth using the preparation guide. With the high level of accuracy and precision in the preparation of teeth, no modification of the prosthesis would be needed for installation.

The invention relates to a radiation-curable radiopaque dental composition comprising a resin matrix comprising cross-linkable component(s) as Component A, ethylenically unsaturated component(s) with acidic moiety as Component B, an initiator system comprising photoinitiator(s) as Component C, reducing agent(s) as Component D, Component A containing at least two (meth)acrylate moieties and a brominated aromatic moiety selected from brominated resorcinol, catechol, tyrosol, benzoic acid, or phenol moieties. The composition can be used for producing an x-ray visible dental adhesive composition, restoration primer or dental sealant.

The invention relates to a radiation-curable radiopaque dental composition comprising a resin matrix comprising cross-linkable component(s) as Component A, ethylenically unsaturated component(s) with acidic moiety as Component B, an initiator system comprising photoinitiator(s) as Component C, reducing agent(s) as Component D, Component A containing at least two (meth)acrylate moieties and a brominated aromatic moiety selected from brominated resorcinol, catechol, tyrosol, benzoic acid, or phenol moieties. The composition can be used for producing an x-ray visible dental adhesive composition, restoration primer or dental sealant.